​Supplicating for a disbeliever

Question:

Is it allowed to ask to other sisters to make dua for a Kaffir boy (14 years old) who has cancer? May Allah bless you.

Zaynab El-Kateb:

The Scholars say that we can make duaa for the Kuffar by first asking Allah to guide their hearts and also we can ask Allah to cure them from illness or pain as we have the hadith stating that a Companion made ruqyah to a kaffir with Surah Al-Fatiha and the Prophet peace be upon him approved his act. But we do not make dua for anyone who died as a disbeliever. Only while he is still alive.